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Glossary of Lighting Terms

Home » Glossary of Lighting Terms
Filament
Filament is a kind of thin wire that produce light when it is heated. It is generally used in old...
Lightbulb Socket
Devices which make the electrical connection of a bulb and fixes the bulb is called lightbulb socket. By the lightbulb...
Diffuser
Optical material takes control of bright light comes from a light source and emit it softly is called diffuser. Diffusers...
Wavelength
Wavelength indicates the distance between repeating units of a waveform (2 peak points). Wavelength is shown by Greek letter (λ)...
CRI (Color Rendering Index)
CRI stands for Color Rendering Index. CRI is an important criterion of the visual performance of a light source. CRI...
CE Mark
CE mark indicates that a product complies with the European Union (EU) regulations and has the related health, safety, and...
Binning
LED chips coming from serial production to have some minor differences, such as light color, light output, and working voltage....
Ballast
Devices that provide the proper voltage and current needed to operate gas discharge lamps such as fluorescent and HID are...
Maintenance Factor
Maintenance factor occurred by the aging or pollution of the lamp. It is the multiplier that expresses the decrease in...
Chandelier
Chandelier is a decorative lighting element which contains more than one lamp. It is designed to mount on ceiling or...
Fixture
Lighting unit, which contains one or more electrical light sources and all necessary parts for operation, is called fixture. Lamp,...